gpui: Fix typo in publish script (#39836)

Release Notes:

- N/A

script/lib/bump-version.sh

@@ -30,9 +30,9 @@ if [[ "$gpui_release" == "true" ]]; then
 cat <<MESSAGE
 Locally committed and tagged ${package} version ${new_version}
 
-To push this (don't forget to open a PR!):
+To push this:
 
-    git push origin ${tag_name}; gh pr create -H ${branch_name}
+    git push origin ${tag_name} ${branch_name}; gh pr create -H ${branch_name}
 
 To undo this: